CPC A61K 9/5047 (2013.01) [A61K 47/10 (2013.01)] | 7 Claims |
1. An enteric coating composition comprising: hypromellose acetate succinate having a molar substitution of hydroxypropoxy groups from 0.40 to 0.85, a ratio of a degree of substitution of acetyl groups to the molar substitution of hydroxypropoxy groups from 0.70 to 1.60 , and a degree of substitution of succinyl groups of from 0.15 to 0.45, and water.
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